Year	% of GDP
1965	18.74996222197731
1966	18.395823361680755
1967	19.369884955006057
1968	19.715168690094007
1969	20.10962413540742
1970	20.24615237438224
1971	22.214734737732392
1972	21.345716098079723
1973	23.006646234961007
1974	21.755492360595113
1975	22.53526911667082
1976	20.54806022983009
1977	21.276704177050625
1978	22.612490484794215
1979	22.38734803767068
1980	23.044033602919033
1981	17.960885037187193
1982	18.63474610720737
1983	21.81785065304498
1984	22.30272460849967
1985	19.906425746037176
1986	21.944317042362275
1987	23.719571602335325
1988	24.461329533701736
1989	24.494621398930626
1990	23.748898916314797
1992	27.85941619527066
1993	26.306518770557414
1994	27.104996162392553
1995	25.612354989673744
1996	23.534884234549946
1997	24.00262744488576
1998	24.114245849662012
1999	30.75669357131382
2000	29.181158470596706
2001	29.771668497778137
2002	22.72494368898233
2003	26.655532036482647
2004	27.66152892433723
2005	27.73161204879669
2006	28.24693681103694
2007	30.399301975774325
2008	29.15719235481805
2009	31.058937796108616
2010	29.353228253193056
2011	27.90948171571339
2012	27.472982281555854
2013	26.05734282804226
2014	26.028026000580887
2015	27.300214868043376
2016	27.81189949625031
2017	27.938841117982488
2018	26.14510746268978
2019	25.685721483583887
2020	26.424964355030166
2021	26.44966275357933
2022	26.418044071792497